Alarmed defense experts believe these UFOs may be highly advanced, next-generation spy drones, raising concerns about American technology being outstripped by previously unknown foreign adversaries, and a sighting above Syria – in skies heavily contested by the U.S., Russia, China and Iran – has only added to the angst.

Newly declassified Pentagon UFO files have reignited debate over a possible alien presence on the Moon after a previously secret NASA Apollo 16 briefing surfaced online. The recording references a mysterious "big hole" near the Van de Graaff crater and includes a startling remark that it "could be an alien star base.

The latest disclosure adds new material to a long-running government archive. Officials describe unresolved cases, not confirmed explanations.

No bombshells so far in the latest Pentagon batch of declassified Unidentified Anomalous Phenomena files. But they show the CIA hid its involvement.

Steven Spielberg is back! After years of making smaller movies that – let’s be honest – didn’t gross as much as they should have, the one-time king of the summer blockbuster reclaimed his throne last

The Pentagon has released another batch of ‘UFO Files’ with footage of unknown objects in the sky—here are the most common alien theories, explained. This voice experience is generated by AI. Learn more.

Dr. Hal Puthoff claims the U.S. has recovered remains of four separate species of alien life from UFOs, citing people involved in the recoveries.

Americans "deserve the truth," a U.S. congressman has told a press conference as part of a wider transparency campaign.

Science fiction stories about “alien” invaders are often political allegories for anxieties around immigration. Now, a government website depicts non-citizens as extraterrestrials.

A secretly filmed documentary on UFO investigator Jeremy Corbell arrives as the federal government releases declassified UAP documents to the public.

Buzz Aldrin is quoted as having made three observations, one of which was of something with a "sizeable dimension."